[History Is Alive - Goguryeo Edition] Episode 15: Ansiseong, the Fortress That Did Not Fall for 88 Days

1. In 645, a large army led by Emperor Taizong of Tang attacked the Goguryeo fortress of Ansiseong but failed to capture it, and withdrew on September 18 after lifting the siege.
2. Tang forces mobilized 60,000 troops by land and some 40,000 naval personnel, while Ansiseong on the Liaodong Peninsula was defended by a commander whose name is not recorded, along with its people.
3. The commander's name 'Yang Manchun,' according to most researchers, comes from folk tales and novels and does not appear in contemporary historical records.

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